Side Sweep: How to Do It

Sorry, short-haired gals. This style works best on medium to long strands—you need length to do the sweep. Start with clean hair blow-dried wavy with a round brush.

Part hair slightly off-center. Take about 4 inches of the smaller side and tease with a comb to add volume. Pull section around back of head and clip in place above opposite ear, says Ken Paves, a stylist in Los Angeles. Attach two or three hair pieces underneath pinned portion. Pull out a few strands in front to frame your face.

The Look: Perfect Knot

Perfect Knot: How to Do It

Use dry shampoo. Spray it underneath top sections of day-old hair to give a little grip, Coffey says. Naturally curly or wavy? Wet strands and blow-dry with a paddle brush so they look polished when wrapped.

Tie hair in a low pony. Pull tail through doughnut's center until it touches scalp. Fan hair over doughnut and pin around. Short hair: Stretch small sections of your pony over the tool and tuck underneath, pinning as you go.

Sexy Bombshell: How to Do It

Spray damp hair with a light texturizer. Blow-dry, tousling with fingers. Pick a "weft" of matching hair that spans from ear to ear. Match length for volume; add a few inches for drama, says Marc Mena, a stylist at Warren Tricomi in New York City.

Lift hair and clip piece in line with tops of ears. Scrunch in more texturizer—avoid oils, silicones and anything heavy or sticky on fakes. Cue the wind machine!